Power head



FIG. 1 is a left-side elevational view of a power head showing our newdesign.

FIG. 2 is a right-side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken line showing of the wheels and various surface features isincluded for the purpose of illustrating portions of the power head andforms no part of the claimed design.

The ornamental design for a power head, as shown and described.